P&E Microcomputer Systems Cyclone LC Series, Руководство пользователя

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User Manual For Cyclone LC Programmers 56
6.1.4.13 Program Serial Number
This command becomes available once a programming algorithm is selected. It will instruct the
Cyclone to program the serial number to the target once executed. As with other commands, the
serial number will not be programmed until the SAP operations are carried out.
Note:
6.1.5 Communication Mode and Rate Settings
Cyclone LC programmers support multiple communication modes and communication rates. A
user needs to select proper communication mode and rate from the drop down list after
programming operations are specified. The debug connector pin definitions are listed for
reference.
6.1.6 Target Voltage and Power Settings
A user may elect to use Cyclone to supply power to the target. In this case, the Target Voltage
specifies the target MCU I/O voltage level.
The user needs to take into account the power discharge time for the Power Down delay. The
reset driver delays, power stabilization time, and the target clock stabilization time should be
considered for the Power Up delay.
A checkbox is available for a user to instruct the Cyclone to turn off target power after SAP
operations. If unchecked, the target power will remain on.
The user has the option to provide Reset Delay if certain reset monitoring devices are used. The
Cyclone will delay for the specified time after allowing the target out of reset.
6.1.7 Image Description
The Cyclone Image Creation Utility allows the user to summarize the purpose of their current
configuration for future reference by adding text to the Image Description box. The description will
be either programmed into the Cyclone or saved into an encrypted file.
The image description will appear on the Cyclone’s touchscreen LCD for image identification. This
field will not affect the Cyclone’s operations with the target.
Tip: If your image will be encrypted, it can be helpful to indicate this as part of the Image
Description.
Figure 6-16: Image Description Box
6.1.8 ProCryption Security License Features
Cyclone FX programmers, and Cyclone LC programmers with the ProCryption Security
Activation License installed, can take advantage of the powerful security features that can be
configured in this area of the Cyclone Image Creation Utility.
6.1.8.1 SAP Image Encryption
Users can create unique ImageKeys which can be used to encrypt their programming images.
SAP images encrypted in this way can only be loaded onto a Cyclone that has been provisioned
with the identical ImageKey.
Note: Both the Cyclone and the ImageKey are needed to decrypt the image. If the ImageKey is later
removed from the Cyclone, the encrypted SAP image cannot be decrypted for programming.
Likewise, the encrypted image cannot be read on a PC.
This section will detail how to use the Cyclone Image Creation Utility to encrypt a SAP image. For
a more in-depth description of Cyclone SAP image encryption, please see
CHAPTER 11 - SAP
IMAGE ENCRYPTION . For detailed information about how to use and manage encrypted
programming images during the production process, the user should refer specifically to Section
11.4 - Managing Encryption For Production Programming .